Brodie
combination reversible puller



Feb. 17, 1970 M. BRODIE Re. 26,798

COMBINATION REVERSIBLE FULLER Original Filed Feb. '7, 1962 2Sheets-Sheet 1 nvvnvme. na -a /c E A? Feb. 17, 1970 M. BRODIECOMBINATION REVERSIBLE FULLER Original Filed Feb. 7, 1962 2 Sheets-Sheet2 IIVVENTGR- M United States Patent Oflice Re. 26,798 Reissued Feb. 17,1970 26,798 COMBINATION REVERSIBLE PULLER Mike Brodie, Box 64, Vilna,Alberta, Canada Original No. 3,089,229, dated May 14, 1963, Ser. No.

171,704, Feb. 7, 1962. Application for reissue Oct.

4, 1968, Ser. No. 786,787

Int. Cl. B23p 19/04 US. Cl. 29-261 Claims Matter enclosed in heavybrackets II] appears in the original patent but forms no part of thisreissue specification; matter printed in italics indicates the additionsmade by reissue.

Generally speaking, this invention relates to devices for removinggears, bearings, sleeves and the like, that have become wedged tightlyon a shaft or in a cylinder and, in particular the invention relates toan improved device for this purpose that combines a gear and sleevepuller in one article.

The principal object is to provide a gear puller that may be adjusted ina variety of positions and sizes to pull gears or pulleys of variousshapes and sizes.

A further object is to provide a gear puller that may be reversedquickly and easily to provide a sleeve puller which also may be adjustedquickly and easily to accommodate sleeves of different diameters.

A further object is to provide a gear puller that may be used to pull avariety of gears, pulleys, sleeves and the like without the necessityfor additions or attachments that must be added to the device.

A further object is to provide an improved combination gear and sleevepuller that may be dismantled quickly and easily and stored in arelatively small container for ease of transportation.

Additional objects and advantages of my device will be obvious from thefollowing specification and the attached drawings which must beconsidered only as illustrative and diagrammatic and not as alimitation.

In the drawings:

FIGURE 1 is a projected broken away view of my device in use as a gearor pulley puller;

FIGURE 2 is a projected view of my device in use as a sleeve puller;

FIGURE 3 is a view taken substantially along the line 3-3 of FIGURE 1.

With reference now to the drawings my device comprises the threaded rodindicated generally at 4 which is provided with a driving head 5 at itsone end and with a rounded point 6 at its opposite end. Suitable threads7 throughout the length of the rod co-act with the nut 8 non-rotatablylocated in the main supporting member 9 so that rotation of the threadedrod by the driving head 5 will move the rod relatively to the supportmember 9.

The driving head 5 is formed with a threaded socket 10 at its upper endand the extension bolt 11 formed with threads 12 may be secured in thethreaded socket 10 at its one end as indicated. At its opposite end 21the extension rod 11 mounts the sleeve puller indicated generally at 13.

The sleeve puller includes the arms 14 and 15 each formed with a centralslotted opening 16 and are mounted slidably on the stub shaft 17 andsecured thereon by the nut 18 on threads 19. The stub shaft 17 issecured pivotally to the outer end 21 of the auxiliary shaft 11 by thepin 22.

The main support member 9 is formed with slots 21' extending towards thecentre from opposite ends of the member. The opposite ends 22 are eachthreaded exteriorly as indicated at 23 and are provided with anadjusting ring nut 24 engaged threadably on the threads 23. A pair ofspaced legs 25 extends downwardly from the cross member 9 on oppositesides of the central opening 26 and a bottom plate 27 formed with acentral slot 28 is secured at the bottom of the legs 2525 by screws 28or like means. Pins 29-29 extend from opposite edges of the legs 2525adjacent the bottom plate 27 and locking arms 30 are each formed withinner curved ends 31 to engage on the pins 29. A compression spring 32reacts between the cross member 9 and the locking arms 30 to normallymaintain the hooked ends 31 of the locking arms on the pins 29.

A pair of elongated puller bars 33 each are formed to fit slidably inone of the slots 21 in the main cross member 9 and to fit slidablythrough additional squared openings 34 in each of the locking arms 30.Each of the arms 33 is formed with identical hook jaws 35 at one end andheads 36 at the opposite end, the jaws 35 normally are used when pullinga gear 37 and the like, while the heads 36 may be used when the deviceis used for sleeve pulling. Openings 38 in each of the bars 33 allow thebars 33 to be interconnected through a chain or like means if the deviceis to be used for hoisting or pressing in sleeves and the like.

In operation and with the apparatus adjusted for pulling a gear 37 fromthe shaft 39 as illustrated in FIG- URE 1, it will be seen that therounded point 6 is engaged with the centre of the shaft 39 while thehooks 35 on the ends of the bars 33 engage with the gears 37 to bepulled. Thereafter, rotation of the head 5 will move the threaded shaft4 with relation to the main support member 9 and the bars 33 and thecombined upward and downward pressure will pull the gear 37 from theshaft 39.

When used for sleeve pulling the nut 8 is removed from the main supportmember 9 and is positioned to bear against the bottom plate 27. The jaws14 and 15 are adjusted to grip under the end of the sleeve 40 andthereafter when the heads 36 bear against the solid surface in which thesleeve 40 is embedded, rotation of the nut 8 will pull the bolt 4through the main support member and obviously will pull the sleeve 40 asdesired.

The heads 36, if desired or necessary, may be used when pulling largegears or pulleys. When used in this manher, the bars 33 are positionedin the cross member 9 and the locking arms 30 in the reverse position tothat illustrated in FIGURE 1 in the drawings.

In either the gear pulling or sleeve pulling operation, it will be seenthat the bars 33 may slide easily in a right to left direction whenoperated, as in FIGURE 1, or in a left to right direction as seen inFIGURE 2. In other words, whenever the locking arms 30 are moved towardthe main cross member 9, the bars 33 will slide easily.

However, whenever the bars 33 are moved in the opposite direction, thegripping action of the bars 33 in the slots 34 will move the lockingarms 30 and grip the bars 33 to prevent any movement of the bars.

What Iclaim as my invention is:

1. In a reversible puller, an elongate main support member, a nutmounted [rotatably] non-rotatably in the main support member, a rodhaving a work engaging point at one end and a driving head at theopposite end and engaged threadably with the said nut to projectsubstantially at right angles to the elongated main support member,slots in the elongated support member extending from the ends thereoftowards the centre, external urge the locking arms away from t he mainsupport member and locking nuts engaged threadably on such threads,locking arms connected pivotally at one end to the main supportingmember to extend on opposite sides of the rod in the same plane as therod, openings in the said locking arms in alignment with the slots inthe main support member, spring means coacting between the main supportmember and the locking arms normally to urge the locking arms away fromthe main support memher, puller bars mounted slidably through the slotsin the elongated supporting member and the openings in the locking armsand work engaging means on the opposite ends of the puller bars.

2. The reversible puller as claimed in claim 1 wherein the elongatedmain support member tapers from the centre thereof towards its ends.

3. The device as claimed in claim 1 and an extension rod connectedthreadably at one end to the driving head and having an adjustablesleeve pulling mechanism mounted pivotally at its opposite end.

4. In a reversible puller, a main support member, a nut fitted removablyin the main support member and [rotatable] non-rotatable therein, a rodhaving a work engaging point at one end and a driving head at theopposite end and engaged threadably through the said nut to project onopposite sides of the main support member and substantially at rightangles to the main support member, slots in the main support memberextending from the ends thereof towards the centre of the support kmember, external threads on the elongated main support member andlocking nuts engaged threadably on such threads, locking arms connectedpivotally at one end to the main support member to extend on oppositesides of the rod and in the same plane as the rod, openings in thelocking arms in alignment with the slots in the main support member,puller bars mounted slidably through the slots in the main supportmember and the openings in the locking arms, the openings in the lockingarms being of a size to permit movement of the puller bars through theopenings and the slots in one direction when the locking arms are movedtowards the main support support member and to prevent sliding movementof the puller bars in the opposite direction when the locking arms aremoved away from the main support member, spring means co-acting betweenthe main support member and the locking arms normally to urge thelocking arms away from the main support member and work engaging meanson the opposite ends of the puller bars.

5. The device as claimed in claim 4 wherein the puller bars arereversible in the main support member and the locking arms.

References Cited The following references, cited by the Examiner, are ofrecord in the patented file of this patent or the original patent.

UNITED STATES PATENTS 1,359,768 11/1920 Thomason 29261 1,388,839 8/1921Allen 2926l 1,893,353 1/1933 Bergman et al 29261 X OTHELL M. SIMPSON,Primary Examiner

